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No. 753,214. PATENTED FEB. 23,1904.

J. w. SHERRY.

AUTOMATICALLY SELF THREADING LOOM SHUTTLE.

APPLICATION FILED 00112.1903.

NO MODEL.

E s I .11 70%7; H

Patented February 23, 1904.

PATENT OFFICE.

JOHN W. SHERRY, OF

DRAPER COMPANY,

TION OF MAINE.

NEW YORK MILLS NEW YORK, ASSIGNOR TO OF HOPEDALE, MASSACHUSETTS, ACORPORA- AUT OMATICALLY-SELF-THREADING LOOM-SHUTTLE.

SPECIFICATION forming part of Letters Patent No. 753,214, dated February23, 1904. Application filed October 12,1903. Serial No- 176,590. (Nomodel.)

To all whom it may concern:

Be it known that 1, JOHN W. SHERRY, a citizen of the United States, anda resident of New York Mills, county of Oneida, State of New York, haveinvented an Improvement in Automatically-Self-Threading Loom-Shuttles,of which the following description, in connection with the accompanyingdrawings, is a specification, like letters on the drawings represent inglike parts.

This invention relates particularly to loomshuttles of the type whereinthe thread of a filling-carrier or bobbin when inserted in the shuttleis automatically threadedinto the delivery-eye, such shuttles being usedin looms provided with filling-replenishing mechanism such as shown inUnited States Patent No. 529,940 and others. In some cases thefilling-thread is thrown forward from the tip of the filling-carrierwhen the shuttle is stopped in the shuttle box, tending to remove thethread from the three passage which leads to the delivery-eye, and theloop of thread then has a tendency to catch on the front of thethreading device and break. When weaving coarse filling, the tendency ofthe heavy thread to be so thrown forward is increased owing to theweight of the thread.

My present invention has for its object the production of a guard whichprojects over the path of the filling-thread between the tip of thefilling-carrier and the rear end of the thread-passage in the threadingdevice and extended beyond the rear end of the latter, preventing thethread from throwing forward and upward out of said passage.

The novel features of my invention will be fully described in thesubjoined specification and particularly pointed out in the followingclaims.

Figure 1 is a perspective. view of the front or threading end of aloom-shuttle with one embodiment of my invention shown in operativeconnection therewith. Fig. 2 is a crosssection on the line 2 2; Fig. 1,looking forward; and Fig. 3 is a side elevation of the end of theshuttle, showing the side delivery-eye.

The shuttle-body A has a longitudinal opening A therein to receive thefilling-carrier or bobbin B, the latter being held therein by means(located in one end of the opening and not herein shown) which grasp thehead of the filling-carrier, all in well-known manner. At the other endof the opening the wood of the shuttle-body is shown cut away to leave atipsupporting shelf a", substantially as in United States Patent No.630,793.

The automatic threading device D, mounted in the end of the shuttle infront of the tipsupport, has a longitudinal thread-passage at, open atits top, and a born 03 at one side thereof, a spaceor clearance 01*between the horn and the top of the shuttle permitting thefilling-thread to pass from the front end of the thread-passage andbeneath the horn to the side deliveryeye 0Z of the shuttle, Fig. 3, suchthreading device being substantially such as shown in United StatesPatent No. 574,864, to which reference may be had.

When the shuttle is suddenly stopped in the shuttle-box, thefilling-thread, especially if coarse and heavy, has a tendency to throwforward off the tip end of the filling-carrier, and to thereby be drawnup out of the rear end of the thread-passage d. This may in some casesunthread the shuttle, or the bight of the loop may be thrown far enoughto catch over the horn d and break as soonas tension is again applied tothe thread, and in either case a fresh filling-carrier must be insertedin the shuttle.

To prevent the thread from throwing forward, I have devised a guardwhich is extended rearwardly from the threading device and projects overthe path of the thread between the rear end of the thread-passage andthe tip of the filling-carrier. Such a guard is shown herein as a stoutwire-like prolongation 9, secured to or forming part of the threadingdevice D and extended rearwardly therefrom along substantially themedian line of the shuttle well along toward the tip of thefilling-carrier. The rear end of the guard is bent or curved laterallyat g, and its extremity is inserted in a hole in the side wall of theshuttle, steadying the guard and leaving nothing for the thread tocatchupon.

The rotative movement of the thread as it is drawn from thefilling-carrier is from right to left viewing Fig. 2, so that if anyquantity is thrown off when the shuttle is stopped it will be thrownagainst and under the guard, being thereby prevented from throwing ontothe top of the shuttle. In the shuttle shown such thrown off thread willbe caught between the guard and the tip-support a and will draw offthrough the thread-passage properly when the shuttle is shot from thebox.

From an inspection of Fig. 1 it will be seen that the rear end 9 of theguard is so far back from the horn d as to make it practicallyimpossible for any loop to be thrown of sufficient length to reach thehorn even should the thread rise up over the guard.

As the thread cannot fly up in front of the rear end of thethread-passage, it cannot slip outof it and unthread the shuttle.

My invention is not restricted to the precise construction andarrangement shown and described, as the same may be modified by thoseskilled in the art without departing from the spirit and scope of theinvention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. An automatically-self-threading loomshuttle having an open sidedelivery-eye, a threading device having a longitudinal threadpassageopen at its top and means to direct the thread from the front endthereof to the eye of the shuttle, and a guard extended rearwardly fromand beyond said threading device and projecting over the path of thethread between the tip of the bobbin and the rear end of thethread-passage, said guard being curved laterally at its rear side toengage the side wall of the shuttle.

2. An automatically-self-threading loomshuttle having an open sidedelivery-eye, a threading device having a longitudinal threadpassage andmeans to direct the thread from the front end thereof to the eye of theshuttle, and a rearwardly-extended prolongation on said threading deviceat one side of the threadpassage and projecting along the median line ofthe shuttle over the path of the thread between the tip of the bobbinand the rear end of the thread-passage, to serve as a guard and preventthe filling-thread from being thrown forward and out of thethread-passage.

3. An automatically-self-threading loomshuttle having an open sidedelivery-eye, a threading device having a longitudinal threadpassage andmeans to direct the thread from the front end thereof to the eye of theshuttle, and a guard extending rearwardly from said device above thepath of the thread between the tip of the bobbin and the rear end of thethread-passage, said guard at its rear end being curved laterally to andsupported in the side wall of the shuttle.

4:. An automatically-self-threading loomshuttle having a longitudinalopening to receive a filling-carrier or bobbin and provided with a sidedelivery-eye, a threading device at one end of said opening having alongitudinal thread-passage and 'means to direct the thread therefrom tothe eye, a tip-support at the adjacent end of the opening in theshuttlebody, and a guard mounted on the threading device and extendedrearwardly therefrom to project above the tip-support over the path ofthe filling-thread between the tip of the filling-carrier and the rearend of the threadpassage.

5. An automatically-selfthreading loomshuttle having an open sidedelivery-eye, a threading device having a longitudinal threadpassage andmeans to direct the thread from the front end thereof to the eye of theshuttle, and a rearwardly-extended guard attached at its forward end tothe threading device and having its rear end curved laterally andsupported in the side wall of the shuttle, said guard projecting overthe path of the fillingthread as it passes to the thread-passage andpreventing it from being thrown forward out of said passage.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN W. SHERRY.

Witnesses:

JOHN 0. AMES, JAs. McGEE, Jr.

